I'm trying to get a custom item into SFM to help out the item creator by making a SFM picture showing off their item. They made the item a skin and that works but when I try putting it into sfm it shows the bones but no textures. Does anyone know what's wrong and how to fix it?

No, it's not the workshop folder. That one is a level too high. You have to create a workshop folder UNDER the materials and Models folders in Usermod or wherever you're going to put them. The Workshop folder goes, workshop/models, not models/workshop.

So the actual path for this is

Models/Workshop/Player/Items/Spy/Crab_bib/ and the model files here after they have been renamedMaterials/Workshop/Player/Items/Spy/Crab_bib/ and the material foles here

If you threw this into the workshop folder, you would have to create the path like this

No no I said that wrong, I did it the way of "Materials/Workshop/Player/Items/Spy/Crab_bib/" and "Models/Workshop/Player/Items/Spy/Crab_bib/" I just meant the area workshop, never came to mind. Its working. Thank you